Evidence map›Paper›PMID 40890303›Full record

ArticleScientific reports2025

Finite element analysis of the influence of surface layer on frictional wear in a follow-up screw-rod kinematic node in GGS stabilization.

Klaudia Szkoda-Poliszuk, Justyna Marcula, Celina Pezowicz

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In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

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0 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Klaudia Szkoda-PoliszukFaculty of Mechanical Engineering, Department of Mechanics, Materials and Biomedical Engineering, Wrocław University of Science and Technology, ul. Łukasiewicza 7/9, Wrocław, 50-371, Poland. klaudia.szkoda-poliszuk@pwr.edu.pl.ORCID http://orcid.org/0000-0002-3934-2142
Justyna MarculaFaculty of Mechanical Engineering, Department of Mechanics, Materials and Biomedical Engineering, Wrocław University of Science and Technology, ul. Łukasiewicza 7/9, Wrocław, 50-371, Poland.ORCID http://orcid.org/0009-0003-6600-715X
Celina PezowiczFaculty of Mechanical Engineering, Department of Mechanics, Materials and Biomedical Engineering, Wrocław University of Science and Technology, ul. Łukasiewicza 7/9, Wrocław, 50-371, Poland.ORCID http://orcid.org/0000-0002-3516-4764

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to numerically analyse the influence of the surface layer on the mechanical properties in a follow-up screw-rod kinematic pair in Growth Guidance Stabilization System. In addition, the polymer insert on the sliding part of the support rod, which is designed to eliminate frictional wear effects, was also analysed. Numerical simulations were carried out by loading the model with short-term repeated load tests to represent the operation of the stabilizer under near-real conditions. Analysis of the reduced stresses according to the Huber - von Mises hypothesis of the cooperating elements, i.e. the rod and the sliding screw cap, showed a point concentration of stresses. In the pairs covered with the additional coating, the maximum stress values do not exceed 4 MPa on both mentioned elements and are similar in all analysed configurations. The modification of the geometry in the form of an additional insert resulted in a different stress distribution, with the maximum values observed at the insert being around 10 MPa. The numerical simulations carried out showed areas of stress concentration at locations that may be indicative of frictional wear occurring. The design modification changed the stress distribution on the mating components, which may be preferable to point contact in standard kinematic pairs. The stress values in the coated models are similar to each other, suggesting that the choice of a particular coating does not significantly affect the mechanical performance, but nevertheless the presence of the coating is crucial.

Indexed as

BiomechanicsFrictional stressGrowth-guidance systemNumerical simulationsSliding pedicle screws

Identifiers

PMID40890303
PMCPMC12402218

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.